|
|
|
|
Brazil, Pedra de Fogo Formation, Tocantins, Psaronius brasiliensis, Permian, 12,5 cm |
Brazil, Pedra de Fogo Formation, Tocantins, Tietea singularis, Permian, 13 cm |
|
|
|
Brazil, Pedra de Fogo Formation, Tocantins,
Tietea sp., Permian, 16 cm |
Brazil, Pedra de Fogo Formation, Tocantins, Agathoxylon sp. and a few cordaite roots Amyelon sp. in the Psaroniaceae adventitious roots, at the magnification Amyelon sp. and Psaroniaceae adventitious root, Permian, 24,5 cm |
|
|
|
|
Brazil, Pedra de Fogo Formation, Tocantins, Psaronius sinuosus, Permian, 12 cm |
Brazil, Pedra de Fogo Formation, Tocantins, Tietea singularis with coprolites and gymnospermous roots,
at the magnification coprolites, Permian, 34,5 cm |
|
|
|
|
Brazil, Pedra de Fogo Formation, Tocantins, Tietea sp. penetrated by Sphenophyllum sp., at the magnification anatomy of Sphenophyllum sp. visible, Permian, 23 cm |
Brazil, Pedra de Fogo Formation, Tocantins, Agathoxylon sp. with Grammatopteris freitasii, Permian, 10 cm |
|
|
|
|
Brazil, Pedra de Fogo Formation, Tocantins, adventitious roots of Psaroniaceae penetrated by Botryopteris nollii, at the magnification stalk, petioles and adventitious roots of B. nollii visible, Permian, 36 cm |
Brazil, Pedra de Fogo Formation, Tocantins, Agathoxylon sp. with two piths, Permian, 9 cm |
|
|
|
Brazil, Paraná Basin,
Tuvichapteris sp., Permian,
diameter 14 cm |
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 19 cm |
Brazil, Tocantins,
Agathoxylon sp., Permian,
diameter 12,5 cm |
|
|
|
Brazil, Tocantins,
Psaronius sp., Permian,
diameter 9 cm |
Brazil, Tocantins,
Psaronius sinuosus, Permian,
diameter 10 cm |
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 10,5 cm |
|
|
|
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 11,5 cm |
Brazil, Tocantins,
Tietea sp., Permian,
diameter 12,5 cm |
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 11,5 cm |
|
|
|
Brazil, Tocantins,
Psaronius brasiliensis, Permian,
diameter 18 cm |
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 12 cm |
Brazil, Tocantins,
Tietea sp., Permian,
diameter 22 cm |
|
|
|
|
Brazil, Pedra de Fogo Formation, Tocantins, Dernbachia brasiliensis, Permian, 10 cm |
Brazil, Pedra de Fogo Formation, Psaronius sp., Permian, 10 - 11,5 cm |
Brazil, Maranhao Basin, Grammatopteris freitasii, Permian, 14 - 17,5 cm |
|
|
|
|
Brazil, Pedra de Fogo Formation, Grammatopteris freitasii, Permian, complete section, diameter 11,5 cm |
Brazil, Pedra de Fogo Formation, Psaronius sinuosus, Permian, complete section, diameter 13,5 cm |
Brazil, Pedra de Fogo Formation, Psaronius brasiliensis, Permian, complete section, diameter 7,5 cm |
|
|
|
Brazil, Maranhao Basin, Grammatopteris freitasii, Permian,
diameter 14 - 22 cm |
Brazil, Pedra de Fogo Formation, Tietea singularis, Permian,
diameter 13 - 15,5 cm |
Brazil, Pedra de Fogo Formation, Psaronius sp., Permian,
diameter 6,5 - 7,5 cm |
|
|
|
Brazil, Pedra de Fogo Formation, Arthropitys sp., Permian,
diameter 8,5 - 10 cm |
Brazil, Bielandia, Tocantins province, Arthropitys sp.,
290 mya (Permian),
diameter 8 cm |
Brazil, Bielandia, Tocantins province, Arthropitys sp.,
290 mya (Permian),
diameter 8,5 - 12,5 cm
|
|
|
|
Brazil, Pedra de Fogo Formation, Arthropitys sp., Permian (296 - 248 mya), quartz mineralisation,
complete section,
diameter 10 cm
|
Brazil, Agathoxylon sp.,
quartz mineralisation, white agate plumey formations and crystals in the centre, complete section,
diameter 13 - 15 cm
|
Brazil, Pedra de Fogo Formation, Agathoxylon sp., Permian (296 - 248 mya), quartz mineralisation, complete section, diameter
10 - 13 cm
|
|
|
|
Brazil, Psaronius sinuosus, Permian (296 - 248 mya),
mainly agate mineralisation (mixed mineralisation),
spaces filled by little quartz crystalls,
complete section, diameter 9 - 11 cm |
Brazil, Bielandia, Tocantins province, Arthropitys sp., Permian (296 - 248 mya), quartz mineralisation,
complete section,
diameter 8 - 10 cm
|
|
|
|
| Brazil, Tietea singularis, Permian, diameter 11 cm |
Brazil, Tietea singularis, quartz mineralisation, piece of trunk, diameter 10 - 13 cm, height 10 cm |
Brazil, Tietea singularis,
Cretaceous (142 - 65 mya),
quartz mineralisation,
complete section,
diameter 8 - 9,5 cm |
|
|
|
| Brazil, Tietea singularis, quartz mineralisation, piece of trunk, diameter 7 - 11,5 cm, height 18,5 cm |
Brazil, Tietea singularis, quartz mineralisation,
piece of trunk,
diameter 11 - 12 cm,
height 8 cm |
|
|
|
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 11,5 cm |
Brazil, Tocantins,
Tietea sp., Permian,
diameter 13 cm |
Brazil, Tocantins,
Tietea singularis, Permian,
diameter 12,5 cm |
|
|
|
Brazil, Tocantins,
Psaronius sp., Permian,
diameter 10 cm |
Brazil, Tocantins,
Psaronius sp., Permian,
diameter 10,5 cm |
Brazil, Tocantins,
Tietea sp., Permian,
diameter 10 cm |
|
